1. Endo G., Hirose S.: Study on Roller-Walker (System Integration and Basic Experiments). Proceedings of the 1999 IEEE International Conference on Robotics and Automation, Detroit (1999)
2. Gronowicz A., Miller S.: Mechanisms (in Polish). Wroclaw University of Technology Publishing House (1997)
3. Grand Ch., BenAmar F., Plumet F., Bidaud Ph.: Stability control of a wheel-legged mini-rover. Proceedings of the CLAWAR 2002 Conference (2002)
4. Grand Ch., BenAmar F., Plumet F., Bidaud Ph.: Decoupled control of posture and trajectory of the hybrid wheel-legged robot Hylos. Proceedings of the 2004 IEEE International Conference on Robotics and Automation, New Orlean (2004)
5. Halme A., Leppänen I., Salmi S., Ylönen S.: Hybrid locomotion of wheel-legged machine. Proceedings of the CLAWAR 2000 Conference (2000)